Boil the water: In a medium saucepan, bring 4 cups of water to a rolling boil over high heat.
Steep the tea: Remove the water from heat and immediately add the tea bags or loose tea. Let steep for 3-5 minutes for optimal flavor without bitterness.
Add sweetener: While the tea is still hot, stir in the sugar until completely dissolved. This ensures even sweetening throughout the beverage.
Remove tea bags: Take out the tea bags or strain the loose tea leaves. Do not squeeze the tea bags as this can release bitter compounds.
Cool the tea: Allow the sweetened tea to cool to room temperature, approximately 30 minutes.
Serve over ice: Fill tall glasses with ice cubes and pour the cooled tea over the ice.
Garnish and serve: Add fresh lemon slices and mint leaves if desired. Serve immediately for best taste.
